Improvement in gas-governors



P. MUNZ INGER.

GAS-GOVERNOR.

Patentea. Feb. 6,1877.

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PETERS. PHDTO-LIITNOGRAPMER, WASHINGTON. D c.

sl AT s rupeeun zn'vcn'a, or PHI ADE PHIA,- PENNSYLVANIA, AssIcNoR TOMORRIS, TASKER- 8ioo.',' '(LIM1TED, ,oF SAME PLAGE' IMPRO E N NSpecification forming part ofiLettersiPatent No. 187,042, dated February6, 1877 application filed 7 d December 20, 18 7 6. I

To all whom it may concern:

Be it known that-I, PETER the city and county of Philadelphia, in theState of Pennsylvania, haveinvented a new and useful Improvement in GasGovernors or Regulators, of which I hereby declare the following to be afull, clear, and precise descrip tion,'and sufficient' to enable thoseskilled in the art to which my invention appertains to comprehend andconstruct, it. 7

My invention relates to that class of devices which are employed togovern and limit the flow of gas according to the elevation of thelocality to be supplied to maintain an equable pressure, and to equalizethe fiow of gas in the main notwithstanding varying pressures; is ofespecial applicability on the pipes connecting gas-holders with streetgas-mains, but can be placed on any main or pipe where the pressure ofgas is to be regulated and the actual flow controlled.

It consists in a device substantially hereinafter set forth forutilizing back pressures of gas to regulate and equalize automaticallythe flow of gas.

Of the drawings, Figure 1 is a perspective view of a governor embodyingmy invention; Fig.2, acentral sectional elevation of the same.

Similar letters of reference indicate corresponding parts wherever used.

A is a inlet-pipe leading from the gas-holder or other source of supplyinto a valve-chamher, B. A is the outlet-pipe,itself being or leading toa street-main or other discharging contrivance. G 0 are cone-valves,adjusted in seats D D in the closed end of the inletpipe. The valve-chamher being a compartment without aperture save in the outlet-pipe A, itis obvious that when the valves 0 are lifted the gas will flow out ofthe inlet-pipe into the valve-chamber, and thence escape by theoutlet-pipe. The valve-cones (and their seats, if desired) are providedwith circumferential corrugations c 0, adapted to contain gas, so as toform a gas cushion or packing for the valvecone with respect to itsseat, to ease any frictional action and pack the valve when shut.

E is a cylindrical float-holder fitted on top of the valve-chamber, anddivided inside into a central circular space, E, and a surroundingMUNZINGER, of

annular space, G, by means of thecylindrical diaphragm H, which issecured above to the cover-plate of the'float-holder, but-Lis open belowto allowof a free circulation of the water with which the float-holderis partially filled, and on which the valve-float I rests. valve-floatis preferablyconstructed of light sheet metal, made gas and air tight,and is provided with friction rollers i 6,, bearing against thediaphragm to ease its riseand fall. J is a float-stem, passing upthrough thetop of the holder, through a stuffingbox or other gas tightdevice. On its projecting upper extremity it bears a weight-cup, K,adapted to receive a series of counterbalancing weights. The float-stemalso passes down below the float through a mercurial seal, Z, to preventthe water in the float-chamber flowing down into the valve-chamber; and,being concentric with their axes, is connected rigidly or jointedly, asshown, to the valves. Hence it follows that an elevation or depressionof thefloat will be accompanied by a corresponding elevation ordepression of the valves, and vice versa. The mercurial seal is ofordinary construction, and'fitted in any convenient inanner between thefloat-holder and valve-chamher, so as to prevent any escape of the waterin the holderinto the valve-chamber. Lis the back pressure-pipe,springing from the outlet or main A, and communicating with the circularinterior space F of the holder. M is a water-feed cup, by which tosupply the holder with water, and N a water-gage to ascertain the levelof the same within the holder. 0 is an air-cock communicating with theannular space G of the holder, and adapted to control the amount andtension of the air within said space above the water.

Such being the construction of my governor, its operation is as follows:The holder being supplied with water, the feed-cup cock m is closed, andthe weight-cup K laden with a weight accurately calculated to beovercome by the given flow of gas into the inlet-pipe so as to permitthe lifting of the valves, and'the consequent escape and flow of gasinto the main A. Such is the operation under an equalized flow of gas.When, however, back pressures arise, tending to back up the gas Thisinto the valve-chamber, inlet-pipe, and holder, it becomes essential toarrest the supply until the back pressure diminishes, which arrest ispressing the air in the same above the formerlevel of the water, theexpansion of which air, when the back pressure of gas has dimin ished,aids in the ascent of the float and the reopening of the supply-valve byexpelling the water from the surrounding into the central space of theholder, (whereby the floatto' which said valves are. connected is againQraised,) until the former level is reached.

It will be readily understood that this whole action is proportionate,and that a slight back pressure will only partially close the supply-:valve while a strong pressure will, tighten them up absolutely. Thetension of the compressed air is to be regulated by a regulation of theamount of air permitted to be in the annular space.

Having thus fully described my invention, I claim and desire to secureby Letters Patent of the United States 1. As a device for'regulating bymeans of back pressures of gas the inlet-valves G O of a gas-regulator,to the total or proportional exclusion of inflowin g gas, a float. I,connected with said valves'and adapted to be acted upon and depressed byback pressure of gas, substantially as described,

2. In combination with the annular air-space G, the air-cockO, adaptedto regulate the air within said space, substantially as described.

3. The float space F, in combination with the outlet or main A, by meansof the back pressure-pipe L, asand for the purpose set forth. 1

4. The combination of the valves 0 O with the float I and weight-cup K,by means of the stem'J,as specified. r

In testimony whereof I have hereunto signed my name in the presence oftwo subscribing witnesses.

' PETER MUNZINGER.

v Witnesses: r

- J BONSALL TAYLOR,

LISLE STOKES. v

